Joseph Stalin

June 22 – December 5, 1941 · 1,200,000 total casualties

Hitler's greatest strategic blunder. By attacking the USSR, Germany created the alliance of convenience — Britain, America, and the Soviet Union — that would inevitably destroy it. The Eastern Front would kill 30 million people and consume the vast majority of Germany's military strength for four years.

August 23, 1942 – February 2, 1943 · 2,000,000 total casualties

The war's true turning point on the Eastern Front. After Stalingrad, Germany never successfully went on the offensive again. The myth of Wehrmacht invincibility was shattered. The strategic initiative shifted permanently to the Soviets. 'Not one step back' — Stalin's order — had held.

July 4–23, 1943 · 860,000 total casualties

Germany's last strategic offensive on the Eastern Front. After Kursk, German forces were permanently on the defensive in the East, retreating continuously until Berlin. The battle ended any realistic hope of a German victory over the Soviet Union.

April 16 – May 2, 1945 · 1,300,000 total casualties

The complete military destruction of Nazi Germany. The Soviet Union bore the overwhelming burden of this final campaign, a fact that shaped postwar geopolitics — Stalin's armies were deep in Central Europe and would not easily leave. The Iron Curtain descended on the continent.